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Straw for the preservation of a predetermined dose of liquid-based substance, in particular pure or diluted animal semen; and set comprising it
Straw for the preservation of a predetermined dose of liquid-based substance, in particular pure or diluted animal semen; and set comprising it
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机译:秸秆用于保存预定剂量的液体物质,特别是纯净或稀释的动物精液;并包括它
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摘要
The invention relates to a straw comprising a tube (11) and a gas-permeable and liquid-tight stopper (12), said stopper (12) being arranged in the tube (11), close to an end (16). The invention is characterised in that the stopper (12) comprises an indicator component (20) having a first pre-determined colour in the absence of previous contact with said substance (21) and a second pre-determined colour, of a different shade from that of the first colour, once it has been in contact with said substance (21). The assembly comprises the straw (10) and a device (26) for controlling the filling of the straw.
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